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100985 (1998 QW30)
Classification: Main-belt Asteroid          SPK-ID: 2100985
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2405309295449789 3.1873e-08  
a 3.077337145761026 1.8883e-08 au
q 2.337142381567834 9.6152e-08 au
i 2.506393186478868 3.5304e-06 deg
node 176.3014471702721 9.3547e-05 deg
peri 139.5554506756245 9.3912e-05 deg
M 61.46723183332563 8.1879e-06 deg
tp 2458863.831720198961
(2020-Jan-15.33172020)
4.3674e-05 TDB
period 1971.791751693343
5.40
1.8149e-05
4.969e-08
d
yr
n .1825750613323327 1.6805e-09 deg/d
Q 3.817531909954218 2.3425e-08 au
  Orbit Determination Parameters
   # obs. used (total)      653  
   data-arc span      8182 days (22.40 yr)  
   first obs. used      1998-08-17  
   last obs. used      2021-01-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52747  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:34:39  

Additional Information
 Earth MOID = 1.32233 au 
 Jupiter MOID = 1.50824 au 
 T_jup = 3.182 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457411.5 (2016-Jan-24.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2420328454653821 3.1509e-08  
q 2.331162423581862 9.5022e-08 au
tp 2456895.785478885310
(2014-Aug-26.28547889)
4.135e-05 TDB
node 176.3842408829424 9.3476e-05 deg
peri 139.9758328368719 9.3841e-05 deg
i 2.507637537980776 3.5337e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      653  
   data-arc span      8182 days (22.40 yr)  
   first obs. used      1998-08-17  
   last obs. used      2021-01-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52747  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:34:39  

Additional Information
 Jupiter MOID = 1.50824 au 
 T_jup = 3.182 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.927894966013352E-16 -2.96123825377726E-15 -2.272644595425777E-13 -1.167555396074437E-14 -3.618371526970821E-14 -6.230117457062923E-16
q -2.96123825377726E-15 9.029173993870249E-15 6.377012546149389E-13 3.566002358336036E-14 1.123879449670738E-13 2.047205161276038E-15
tp -2.272644595425777E-13 6.377012546149389E-13 1.70982557625209E-9 1.010614684259396E-11 3.63745013578437E-10 2.605929517783789E-13
node -1.167555396074437E-14 3.566002358336036E-14 1.010614684259396E-11 8.737734453633428E-9 -8.726829609152495E-9 6.286276860050822E-13
peri -3.618371526970821E-14 1.123879449670738E-13 3.63745013578437E-10 -8.726829609152495E-9 8.806182556763135E-9 -5.662357035873654E-13
i -6.230117457062923E-16 2.047205161276038E-15 2.605929517783789E-13 6.286276860050822E-13 -5.662357035873654E-13 1.248696066576522E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.35   n/a E2021B55  

100985 (1998 QW30)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 QW30 = 2003 NT5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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